It has potential.
As someone whom is totally blind, I wouldn't mind if the bus stop had
a "crosswalk post with push button" gadget that told us which stop we were at (main street & nearest cross street), which bus(es) stopped there, the time when the next bus was scheduled to arrive, & if there were any conditions that meant I needed to find another stop elsewhere (traffic jam blocking access, bus broke down, etc).
Being able to walk up, find the post, push the button, & find out that info would make it much easier to navigate the city without being forced to keep asking random strangers for assistance.
Yes an application on a SmartPhone that matched the bus/train public transit network to your SmartPhone's GPS to tell you that data would ALSO be nice, but that relies on having a SmartPhone, having a signal that can connect you to the internet, your GPS functioning properly, having the application installed, the application functioning properly, etc etc etc.
Having a post at each stop (make it part of the pole that the bus sign is mounted to) would mean that *anyone* whom found the stop could find out that data without being forced to have all those other elements working flawlessly as well.
YES there are Door-To-Door ParaTransit services available in many locations, but they're generally not cheap AND they require you to either reserve them well in advance or pay a "last minute" fee (which makes it even more extortionate). Such services are nice when you can afford them, but they've given up flexability in favor of timelyness; you can get from A to B in as little time as possible, but if you suddenly realize you need to swing by C as well then you're screwed. The drivers are on a timer with a route to stick to like glue. They can't just skip off to $OtherLocation because you asked them to. If you're on a public bus & on your way to B when you realize you need to get to C, you can ask the driver which bus(es) you need to catch to get there, have them drop you off at the next stop, & the nice ones will even radio to Dispatch to have the bus you need wait for you to catch it. Sure it takes longer, but you can change destinations as easily as changing bus routes & showing your Daily/Monthly Pass.
A talking bus stop would be a nice thing for the blind, it could even be useful to anyone whom has cognative disabilities, is autistic, or otherwise might have trouble working out where they are, which bus(es) go by there, when they go by, & that sort of thing.
Sure it's not cheap, it costs money to install such systems, maintain them, update them, & keep them as accurate as possible, but the ROI makes them valuable to any/everyone for whom "personal mobility" is limited to either Public Transportation, Cabs/Taxi/Lyft/Uber, or bumming rides off friends/relatives every time we need to go somewhere.
I'd rather know that I could walk down the block to the corner, find the bus stop, push the button, & hear when the next bus #x was due past, confident that I could catch it & go where I needed, than to have to call up a friend at the drop of a hat & have to beg them to drive me to run an errand I could otherwise do for myself if I only knew when/where to catch the bus.
It's all a pipe dream though. I live in America.